Beyond the familiar planets lies a fascinating frontier filled with icy worlds, mysterious orbits, and cosmic curiosities. These are the dwarf planets—small but mighty members of our solar system that ...

As residents of Earth, we’re well accustomed to the fact that there are 24 hours in a day. That’s approximately how long it takes the planet to move on its axis relative to the sun, known as a solar ...

Quiz Planet is a fast-paced quiz game of intergalactic proportions where you can compete against your friends and other players. Games metadata is powered by IGDB.com With his latest JRPG epic, ...

Test your space smarts with our weekly crossword challenge, crafted from Space.com's biggest headlines. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

You’ve set your telescope up and are showing people some of the wonders in the sky. Of course, they’re going to ask you questions. Here are some you might be asked. How many do you know the answers to ...

Emma R. Hasson is Scientific American’s Games ace and a Ph.D. candidate in mathematics at the City University of New York Graduate Center with expertise in math education and communication. Hasson was ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Beyond the familiar planets lies a fascinating frontier filled with icy worlds, mysterious orbits ...